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【简答题】
某台原子吸收分光光度计,其线色散率为每纳米 1.0 mm,用它测定某种金属离子,已知该离子的灵敏线为 403.3nm,附近还有一条 403.5nm 的谱线,为了不干扰该金属离子的测定,仪器的狭缝宽度达: A. B. C. D.
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参考答案：
举一反三
【单选题】How long did Max walk before he asked sebody to help?
A.
ten minutes
B.
five minutes
C.
thirty minutes
D.
twenty minutrs
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【单选题】镰刀型红细胞性贫血其β链有关的突变是( )
A.
缺失
B.
点突变
C.
交联
D.
插入
E.
断裂
查看完整题目与答案
【单选题】Boxing was long viewed sickly. Generally forbidden by law in earlier days, the fighting was usually done with bare fists, and matches often lasted forty or fifty rounds. In 1882 John L. Sullivan, a fi...
A.
short and bloody
B.
usually spare-time competitions
C.
governed by strict rules
D.
cruel
查看完整题目与答案
【简答题】阅读理解。 Long, long ago there was a very foolish thief. Do you know what he did one day? When he wanted to steal(偷) the bell on his neighbour's door, he walked up to the door, took hold of (抓住) the bell ...
查看完整题目与答案
【判断题】舌下黏膜给药受到唾液冲洗作用弱,可制成生物黏附片延长作用时间
A.
正确
B.
错误
查看完整题目与答案
【单选题】原棉选配时,常以若干队产地相同或性质接近的唛头作为主体成分,一般主体原棉在配棉成分中约占()左右。
A.
90%
B.
80%
C.
70%
D.
60%
查看完整题目与答案
【单选题】镰刀型红细胞性贫血是哪种结构异常?
A.
一级结构
B.
二级结构
C.
三级结构
D.
四级结构
查看完整题目与答案
【单选题】—Our school in 1886. —Wa, it has a very long history. [     ]
A.
built
B.
was built
C.
is built
D.
has built
查看完整题目与答案
【单选题】镰刀型红细胞性贫血是由于HbA的结构变化引起的,其变化的特点是:
A.
HbA的α链的N端第6位谷氨酸残基被缬氨酸所取代
B.
HbA的α链的C端第6位谷氨酸残基被缬氨酸所取代
C.
HbA的β链的N端第6位谷氨酸残基被缬氨酸所取代
D.
HbA的β链的C端第6位谷氨酸残基被缬氨酸所取代
E.
以上都不是
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【单选题】下列哪种疾病一般不会导致 DIC 的发生? ( )
A.
稽留流产
B.
重度子痫前期
C.
胎盘早剥
D.
死胎
E.
异位妊娠
查看完整题目与答案
相关题目：
【单选题】How long did Max walk before he asked sebody to help?
A.
ten minutes
B.
five minutes
C.
thirty minutes
D.
twenty minutrs
查看完整题目与答案
【单选题】镰刀型红细胞性贫血其β链有关的突变是( )
A.
缺失
B.
点突变
C.
交联
D.
插入
E.
断裂
查看完整题目与答案
【单选题】Boxing was long viewed sickly. Generally forbidden by law in earlier days, the fighting was usually done with bare fists, and matches often lasted forty or fifty rounds. In 1882 John L. Sullivan, a fi...
A.
short and bloody
B.
usually spare-time competitions
C.
governed by strict rules
D.
cruel
查看完整题目与答案
【简答题】阅读理解。 Long, long ago there was a very foolish thief. Do you know what he did one day? When he wanted to steal(偷) the bell on his neighbour's door, he walked up to the door, took hold of (抓住) the bell ...
查看完整题目与答案
【判断题】舌下黏膜给药受到唾液冲洗作用弱,可制成生物黏附片延长作用时间
A.
正确
B.
错误
查看完整题目与答案
【单选题】原棉选配时,常以若干队产地相同或性质接近的唛头作为主体成分,一般主体原棉在配棉成分中约占()左右。
A.
90%
B.
80%
C.
70%
D.
60%
查看完整题目与答案
【单选题】镰刀型红细胞性贫血是哪种结构异常?
A.
一级结构
B.
二级结构
C.
三级结构
D.
四级结构
查看完整题目与答案
【单选题】—Our school in 1886. —Wa, it has a very long history. [     ]
A.
built
B.
was built
C.
is built
D.
has built
查看完整题目与答案
【单选题】镰刀型红细胞性贫血是由于HbA的结构变化引起的,其变化的特点是:
A.
HbA的α链的N端第6位谷氨酸残基被缬氨酸所取代
B.
HbA的α链的C端第6位谷氨酸残基被缬氨酸所取代
C.
HbA的β链的N端第6位谷氨酸残基被缬氨酸所取代
D.
HbA的β链的C端第6位谷氨酸残基被缬氨酸所取代
E.
以上都不是
查看完整题目与答案
【单选题】下列哪种疾病一般不会导致 DIC 的发生? ( )
A.
稽留流产
B.
重度子痫前期
C.
胎盘早剥
D.
死胎
E.
异位妊娠
查看完整题目与答案
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